Results of the AKM Video Meteor Network - August 2001
=====================================================

August saw 11 active observers who operated 14 video systems. Even though 
two observers (KNOAN and YRJIL) could not observe and the AKM2 camera was 
transfered to Juergen Rendtel but not yet operated, the number of cameras
was much higher than in the previous record month July. Detlef Koschny 
installed a second camera at his home in Noordwijk and I could operate my large
mirror camera ESCIMO at the Ketzuer meteor camp. In addition we now also get
video data from Czech Ondrejov observatory and their secondary station
Kunzak. Rosta Stork and colleagues operate these systems in double station
mode in selected nights during major showers.

We got a new observer in Australia, too. Steve Quirks has been operating the 
second camera of Rob McNaught which records a large amount of meteors even 
without an image intensifier thank to the perfect Australian conditions.
The main aim is to obtain double station observations with the primary camera
of Rob, which will be used to derive meteoroid orbits later on. So a large
fraction of meteors recorded by SSO-WAT1 are identical to those recorded by
SSO1.

Austrian Werfried Kuneth will join the network next month. Since August he
has been operating the same sensitive CCD video camera (Watec 902H) without
image intensifier for detecting bright meteors. With a fisheye lens this
camera has a limiting magnitude of 0 mag at a 120 deg field of view. In the
beginning problems occured with the measurement of reference stars, which
is why the August data could not be taken over into the database. The problem
is fixed by now, however.

In summary the August weather was good in Australia and mediocre in central
Europe. There were a number of days with hot Summer weather and clear nights,
but at the Perseid maximum it was overcasted at many sites. So it was the
large number of camera systems that presented us new records with respect to
the meteor number and effective observing time: Both values were in August
2001 alone of the same order as in the full first year of our network (1999).

In the first week of August the weather was especially poor. At that time the 
"Meteoroids" conference took place in Kiruna/Sweden. There I presented the
MetRec software, our video network, and the video meteor database. The feedback
by other participants was very encouraging and a number of colleagues are 
thinking about using the software in the future, too. So further expansion of 
our video network seems to be in sight.


1. Observers
============

Code     Name      Place            Camera         FOV    LM  Nights Time Meteors
--------------------------------------------------------------------------------
BENOR  Benitez  S. Maspalomas   TIMES4 (1.4/50)   20 dg  8 mag  15 104.4 h   604 
EVAST  Evans    Little Thurlow  EMILY (1.8/28)    36 dg  5 mag   6  21.0 h   130
KOSDE  Koschny  Noordwijkerhout ICC3 (0.75/50)    15 dg  8 mag   6  30.9 h    80
                                ICC4 (0.85/25)    25 dg  6 mag  11  54.6 h   212
MCNRO  McNaught Coonabarabran   SSO1 (1.2/85)     13 dg  9 mag  18 121.1 h  2525  
MOLSI  Molau    Aachen          AVIS (2.0/35)     40 dg  5 mag  14  64.9 h   773
                                AKM2 (1.5/250)     6 dg 10 mag   4  13.2 h    67
NITMI  Nitschke Dresden         VK2 (0.75/50)     20 dg  8 mag   6  25.4 h   386
QUIST  Quirks   Mudgee          SSO-WAT1 (1.4/8)  13 dg  5 mag  22 225.0 h   587
RENJU  Rendtel  Marquardt       CARMEN (1.8/28)   28 dg  5 mag  13  66.9 h   247
SPEUL  Sperberg Salzwedel       AKM1 (0.85/25)    32 dg  6 mag  11  59.0 h   343
STORO  Stork    Ondrejov        OND1 (1.4/50)     22 dg  8 mag   5  28.6 h   316
                Kunzak          OND2 (1.4/50)     22 dg  8 mag   5  28.7 h   320
STRJO  Strunk   Leopoldshoehe   FAMOS  (2.0/28)   45 dg  5 mag  13  78.1 h   173
--------------------------------------------------------------------------------
Overall                                                         29 921.8 h  6763


2. Observing Times (h)
======================

Aug    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
BENOR   -    -    -    -    -    -    -    -   7.9  7.7  7.7  6.7  8.0  7.7  7.5
EVAST   -    -    -    -    -    -    -    -    -   5.0   -    -   5.0  1.8   -
KOSDE   -    -    -    -    -    -    -    -    -   5.3   -    -    -    -    -
       5.8   -   3.0   -   5.0   -    -   5.5   -   6.0  4.4   -    -    -    -
MCNRO   -    -    -   1.9   -   0.7  3.9 10.5   -   8.9  9.8   -   7.8  3.7   -
MOLSI  3.0   -    -    -    -    -    -    -    -   3.0  0.7        -   5.6  5.8
        -    -    -    -    -    -    -    -    -    -   0.9   -    -    -   5.1
NITMI   -    -    -    -    -    -    -    -    -    -   4.0  2.2   -   5.0  4.1
QUIST  5.8   -   6.0   -    -    -   3.8 10.9 10.7  9.0 11.4 13.4 12.3 12.2 10.3
RENJU   -   4.4   -    -    -    -    -    -    -   4.5   -    -    -   5.8  6.2
SPEUL  4.9   -    -   3.2   -    -    -    -    -   3.4   -    -    -    -   5.6
STORO   -    -    -    -    -    -    -    -    -    -    -   4.9  3.6  6.7  6.7
        -    -    -    -    -    -    -    -    -    -    -   5.0  3.6  6.7  6.7
STRJO  5.7   -    -    -   5.4   -    -    -    -    -   2.7   -    -   6.6  6.5
--------------------------------------------------------------------------------
Sum   25.2  4.4  9.0  5.1 10.4  0.7  7.7 26.9 18.6 52.8 41.6 32.2 40.3 61.8 64.5

Aug    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
------------------------------------------------------------------------------------
BENOR  7.2  7.2  4.7  7.1  6.2   -   6.7   -   5.6  6.5   -    -    -    -    -    -
EVAST  3.1   -    -    -   3.0   -    -    -   3.1   -    -    -    -    -    -    -
KOSDE   -    -    -    -    -    -    -    -   4.2  5.8   -   5.7  6.5  3.4   -    -
        -    -    -    -    -    -    -    -   4.3  6.0   -   4.4  6.6  3.6   -    -
MCNRO   -   9.1  3.3 10.2  5.0  8.9  7.8  9.6 10.2   -    -    -    -   9.8   -    -
MOLSI  2.3  4.7   -   5.5   -   6.8  7.1  6.5   -   5.1   -    -   3.3  5.5   -    -
       2.1  5.1   -    -    -    -    -    -    -    -    -    -    -    -    -    -
NITMI   -    -   5.0  5.1   -    -    -    -    -    -    -    -    -    -    -    -
QUIST 11.9 11.0 11.5 11.8  7.9 11.1 11.3 11.6 11.2 11.3   -    -    -    -   8.6   -
RENJU  2.9  3.3   -    -   2.0   -   7.0  6.8   -   7.2   -   4.2   -   7.6  5.0   -
SPEUL   -   4.5   -   5.8   -   5.5  6.3  7.0   -    -    -   5.8   -   7.0   -    -
STORO  6.7   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
       6.7   -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO   -    -   3.7   -    -   7.0  6.9   -   4.4  6.9   -   7.4  7.4  7.5   -    -
------------------------------------------------------------------------------------
Sum   42.9 44.9 28.2 45.4 24.1 39.3 53.1 41.5 43.0 48.8   -  27.5 23.8 44.4 13.6   -


3. Results (Meteors)
====================

Aug    01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
--------------------------------------------------------------------------------
BENOR   -    -    -    -    -    -    -    -   36   34   67   56   39   67   47
EVAST   -    -    -    -    -    -    -    -    -   38    -    -   41    8    -
KOSDE   -    -    -    -    -    -    -    -    -    2    -    -    -    -    -
       40    -   10    -   16    -    -    8    -   16    4    -    -    -    -
MCNRO   -    -    -    1    -    6   26  108    -   39   82    -  141   69    -
MOLSI  60    -    -    -    -    -    -    -    -   78   13    -    -   92  121
        -    -    -    -    -    -    -    -    -    -    6    -    -    -   27
NITMI   -    -    -    -    -    -    -    -    -    -   80   35    -  107   50
QUIST  72    -    3    -    -    -    5   31   27   25   10   21   32   27   23
RENJU   -   11    -    -    -    -    -    -    -   42    -    -    -   27   25
SPEUL  39    -    -   12    -    -    -    -    -   52    -    -    -    -   46
STORO   -    -    -    -    -    -    -    -    -    -    -   84   44   76   69
        -    -    -    -    -    -    -    -    -    -    -   91   52   68   63
STRJO  22    -    -    -   18    -    -    -    -    -    9    -    -   25   16
--------------------------------------------------------------------------------
Sum   233   11   13   13   34    6   31  147   63  326  271  287  349  566  487

Aug    16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
------------------------------------------------------------------------------------
BENOR  39   41   28   42   39    -   19    -   20   30    -    -    -    -    -    -
EVAST  18    -    -    -    9    -    -    -   16    -    -    -    -    -    -    -
KOSDE   -    -    -    -    -    -    -    -    5   28    -   17   20    8    -    -
        -    -    -    -    -    -    -    -   14   41    -   17   33   13    -    -
MCNRO   -  225   70  274  161  306  237  382  340    -    -    -    -   58    -    -
MOLSI  11   37    -   72    -   56   32   42    -   81    -    -   39   39    -    -
        6   28    -    -    -    -    -    -    -    -    -    -    -    -    -    -
NITMI   -    -   62   52    -    -    -    -    -    -    -    -    -    -    -    -
QUIST  17   15   26   32   25   34   39   42   40   18    -    -    -    -   23    -
RENJU   9   12    -    2    -    -   14   24    -   27    -   20    -   27    7    -
SPEUL   -   26    -   23    -   29   16   24    -    -    -   44    -   32    -    -
STORO  43    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
       46    -    -    -    -    -    -    -    -    -    -    -    -    -    -    -
STRJO   -    -   11    -    -   15    8    -    6    7    -   12   14   10    -    -
------------------------------------------------------------------------------------
Sum   189  384  197  497  234  440  365  514  441  232    -  110  106  187   30    -

Sirko Molau, 2001/09/17